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Finding the Fourth Proportional to 66,310.69, 91,509.92 and 36,096.88

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Solution

The fourth proportional to 66,310.69, 91,509.92 and 36,096.88 is: 49,814.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,310.69 : 91,509.92 = 36,096.88 : x
  2. Step 2: Convert to fraction form
    66,310.69/91,509.92 = 36,096.88/x
  3. Step 3: Cross multiply
    66,310.69x = 91,509.92 × 36,096.88
  4. Step 4: Simplify right side
    66,310.69x = 3,303,222,601.05
  5. Step 5: Solve for x
    x = 3,303,222,601.05/66,310.69
  6. Step 6: Final answer
    x = 49,814.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.